The Pentagon has asked for the resignation of General David McKiernan, the commander of U.S. and NATO forces in Afghanistan. McKiernan will likely be replaced by Lieutenant General Stanley McChrystal, a former special operations commander chosen by Defense Secretary Robert Gates. So what does the shake-up indicate about U.S. military strategy in Afghanistan? The Takeaway talks to Retired Air Force Colonel Sam Gardiner. He's taught strategy and military operations at the National War College.

Five U.S. service members were killed yesterday by a fellow soldier on an American military base in Baghdad yesterday. The soldier was later taken into custody. The center where the shooting occurred offered counseling services to soldiers seeking assistance and was considered a safe place for most servicemen. The killings appear to be the single deadliest episode of soldier-on-soldier violence among U.S. troops since the invasion six years ago.

Approximately one in six soldiers returns home with signs of post-traumatic stress. At least 140 soldiers committed suicide in 2008, according to the Army, a considerable increase compared with the 115 cases reported the previous year and the 102 documented in 2006. The number is the highest since the military started tracking suicide data in 1980. The Marine Corps, Navy and Air Force also reported an uptick in suicides last year.

For more on this tragedy and the military's reaction, we turn to Ernesto Londono, The Washington Post's Baghdad correspondent.

For more information on the shooting, watch the video below.

It was a big night in basketball. LeBron James led Cleveland to an NBA Playoff-record eight straight wins by double digits with an 84-74 victory over the Atlanta Hawks to advance to the Eastern Conference finals. The Cavaliers became the second team to sweep the first two rounds of the playoffs since the NBA expanded the first round to best-of-seven in 2003.

Meanwhile, the victory by the Dallas Mavericks denied the Denver Nuggets a sweep of the second round best-of-seven Western Conference series, although the Nuggets could still advance by capturing game five at home on Wednesday.

Sports blogger and Takeaway Sports Contributor Ibrahim Abdul-Matin is here with the wrap up.

Watch the top 10 dunks performed by LeBron James.

The suspected Nazi John Demjanjuk has arrived in Germany today where he faces a warrant accusing him of being a guard at a Nazi-run internment camp during World War II and being an accessory to the murder of 29,000 people. The retired Ohio autoworker was deported from the United States and arrived Tuesday morning at Munich's airport. Now the 89-year-old will be brought before a judge and formally arrested.

In the 1980s Demjanjuk was extradited to Israel where he was convicted of war crimes and sentenced to death; his conviction was overturned by the Israeli supreme court which accepted his claim of mistaken identity. But Demjanjuk has remained at the top of the Simon Wiesenthal Center's list of "most wanted" Nazi war crimes suspects.

For more on this story we turn to Tristana Moore, the BBC’s reporter in Berlin.

Two days of shelling in Sri Lanka's northern war zone killed at least 430 civilians, with some estimates putting the number as high as 1,000. The Sri Lankan military and the Tamil Tiger rebels traded accusations over the shelling. The United Nations called the artillery barrages a "bloodbath" that killed more than 100 children, and a coalition of international human rights groups called for the U.N. Security Council to hold formal talks on the war. The Sri Lankan military has twice said it would stop using heavy weaponry against the Tamils, who are surrounded by tens of thousands of civilians in a narrow strip of land along Sri Lanka's coastline. U.N. figures compiled last month showed that nearly 6,500 civilians had been killed in three months of fighting as the government drove the rebels out of their strongholds in the north in a bid to end the 25-year long civil war. The unrest has also displaced thousands of civilians, a situation that is leading the beleaguered nation into a widespread humanitarian crisis. The Takeaway looks at the increasingly violent civil war in Sri Lanka, with BBC Correspondent Charles Haviland and Manivanna Thirumalai of the BBC's Tamil Service.

For high quality video, click the "HQ" button.

Today we’re kicking off our series “Pomp in these Circumstances.” Over the course of this week we’ll be looking at the challenges that high school and college graduates are facing in these difficult economic times. This year 3.2 million students are expected to graduate from high school and of those, roughly 70% will go on to get a college education. But with two-thirds of college graduates carrying debt—and the average student loan debt topping $20,000 dollars— is a college degree worth it? What does it get you in today’s global economy? Joining us to talk about the value of a college education is career counselor and higher-education policy writer, Marty Nemko.

Yesterday, the Obama administration built momentum for an ambitious plan aimed at reducing the rising cost of health care. The administration announced $2 trillion in voluntary cost reductions over ten years by hospitals, doctors, drug makers, and insurance companies. But will this volunteer plan work? Or will the Obama administration need to regulate the industry with a firmer hand? And where do you, the private citizen, come in when it comes to taking care of yourself and your healthcare? Joining the conversation is Henry J. Aaron, who served as the Assistant Secretary of Planning and Evaluation at the Department of Health, Education and Welfare during the Carter administration. He is now a senior fellow at the Brookings Institution.

Also on The Takeaway is Dean Karlan. He's a behavioral economist at Yale and a co-founder of StickK.com, a site that helps you reach personal goals, like being healthier, by giving yourself an incentive. He's here to help explain how change, especially in health care, can actually trickle up from individuals to the national level.

Cities around the country are shrinking their mass transit systems in the face of economic woes. Charlotte, NC, is bucking that trend, though. They are in the process of tripling the light rail in their city. Takeaway Correspondent Andrea Bernstein is just back from Charlotte and she joins The Takeaway to explain what the city is planning, why they are prioritizing transit, and how they're paying for it.

Elizabeth Edward's latest round of interviews about her husband's affair has gotten our friend Randy Cohen thinking: Is she wrong to put her family through this again, just to promote her latest book? (It's called Resilience, by the way.) Randy Cohen is The Ethicist, columnist for The New York Times Magazine, and the author of the new Moral of the Story blog.

Here's Elizabeth Edwards discussing her husband's affair with Oprah:

The Pentagon announced that they are replacing the top American commander in Afghanistan, General David McKiernan. He's only been leading the troops for one year, but Secretary of Defense Robert Gates asked for his resignation. He will remain in his post until a new commander, most likely Lieutenant General Stanley McChrystal, can be nominated and confirmed. It's a major overhaul in military leadership in the midst of a war. For more we turn to BBC Security and Defense Correspondent Rob Watson.

Duped. Tricked. Hornswoggled. Deceived. How can you tell if someone is fooling you? According to a new article out in today's Science Times, it's all in how they tell the story. The new focus on interview content grows in part out of a frustration with previous methods that studied behavior — averted eyes, fidgeting, or sweating—and a lack in helpful technological advances. The more important point: How much detail does someone give you when they tell their story? Joining The Takeaway with more on this story is New York Times science reporter Benedict Carey. Listen in, and then try the technique out on a con-artist (or first date) near you.

Benedict Carey's article is part of the Science Times' special Forensics section. Read his article, "Judging Honesty By Words, Not Fidgets," and check out the rest of The New Forensics issue.

Also, if lying appeals to you, listen to Radio Lab's show on Deception.

Beating a polygraph test may not get you in the clear if you're lying. But just in case, watch this video for pointers.